An aircraft fuel tank inspection robot

Abstract

The utility model relates to the technical field of aircraft fuel tank inspection, and disclose a kind of aircraft fuel tank inspection robot, including robot body, the robot body top is provided with rotating mechanism, the rotating mechanism top is provided with angle adjusting mechanism.In angle adjusting mechanism, second servo motor drives worm rotation, through the meshing transmission of worm and worm wheel, drive second shaft rotation, further make the precise angle adjustment of connecting plate and above camera body and LED light source.This makes camera can be observed from different angles inside fuel tank in detail, avoid inspection dead angle, guarantee accurate acquisition fuel tank condition, in rotating mechanism, first servo motor drives gear rotation, gear and outer tooth ring meshing, drive rotary disc and first shaft rotation, realize the rotation of fixing frame and angle adjusting mechanism, further expand camera inspection range, make robot to each area inside fuel tank all-around scanning, greatly improve the comprehensiveness and accuracy of inspection.

Description

Technical Field

[0001] This utility model relates to the field of aircraft fuel tank inspection technology, specifically an aircraft fuel tank inspection robot. Background Technology

[0002] As a core component for aircraft fuel storage, the structural integrity and safety of aircraft fuel tanks directly affect flight safety. Due to the confined internal space and complex structure of aircraft fuel tanks, and their exposure to harsh environments such as fuel immersion, temperature changes, and vibration, they are prone to corrosion, cracks, and welding defects. Therefore, regular, comprehensive, and meticulous inspections of aircraft fuel tanks are a crucial aspect of aviation maintenance.

[0003] Traditional aircraft fuel tank inspection methods primarily rely on manual operation, requiring operators to enter the tank or use handheld tools through narrow access ports. However, this method has several limitations: firstly, the limited space inside the fuel tank makes manual entry inconvenient and risks accidental damage to the internal structure; secondly, the dim lighting inside the tank, even with auxiliary lighting, makes it difficult to ensure a comprehensive inspection view, easily overlooking defects in hidden areas. Furthermore, manual inspection is inefficient, and the results largely depend on the operator's experience and sense of responsibility, leading to subjectivity and difficulty in guaranteeing accuracy. Utility Model Content

[0004] The purpose of this invention is to provide an aircraft fuel tank inspection robot to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an aircraft fuel tank inspection robot, comprising a robot body, a rotating mechanism on the top of the robot body, and an angle adjustment mechanism on the top of the rotating mechanism; The angle adjustment mechanism includes a fixed frame, which is located on top of the rotating mechanism. A second servo motor is fixedly connected to the left side of the fixed frame, and a worm gear is fixedly connected to the output end of the second servo motor. Two second fixed plates are symmetrically fixedly connected to the bottom of the inner wall of the fixed frame. A second rotating shaft is provided on the top of the two second fixed plates near the worm gear. A worm wheel is fixedly connected to the middle of the surface of the rotating shaft. Third fixed plates are fixedly connected to both ends of the second rotating shaft. A connecting plate is fixedly connected to the top of the two third fixed plates. A camera body is fixedly connected to the top of the connecting plate. An LED light source is fixedly connected to the top right side of the connecting plate.

[0006] Preferably, a hole matching the second rotating shaft is provided on one side of the second fixing plate near the top, and the surface of the second rotating shaft passes through and is rotatably connected to the hole.

[0007] Preferably, the worm gear meshes with the worm wheel, and the right end of the worm gear is rotatably connected to the right side of the inner wall of the fixed frame.

[0008] Preferably, the rotating mechanism includes a housing, the top of which is fixedly connected to the robot body, and heat dissipation holes are provided on the left and right sides of the housing. A first fixing plate is fixedly connected to the back of the inner wall of the housing, a first servo motor is fixedly connected to the top of the first fixing plate, a gear is fixedly connected to the surface of the output shaft of the first servo motor, a first rotating shaft is rotatably connected to the bottom of the inner wall of the housing, a rotating disk is fixedly connected to the surface of the first rotating shaft near the bottom end, and an external gear ring is fixedly connected to the edge of the rotating disk.

[0009] Preferably, the top of the housing has a hole that matches the first rotating shaft, and the surface of the first rotating shaft passes through and is rotatably connected to the hole.

[0010] Preferably, the gear meshes with an external gear ring.

[0011] Preferably, the top end of the first rotating shaft is fixedly connected to the bottom of the fixing frame.

[0012] Compared with the prior art, this utility model provides an aircraft fuel tank inspection robot, which has the following beneficial effects: This aircraft fuel tank inspection robot employs an angle adjustment mechanism. A second servo motor drives a worm gear, which in turn rotates a second rotating shaft via a meshing transmission. This allows for precise angle adjustment of the connecting plate, its camera, and the LED light source. This design enables the camera to comprehensively and meticulously observe the interior of the aircraft fuel tank from different angles, effectively avoiding blind spots and ensuring accurate acquisition of the tank's internal condition. The rotation mechanism, driven by a first servo motor, rotates a gear that meshes with an external gear ring, driving a rotating disk and the first rotating shaft. This achieves rotation of the fixed frame and its angle adjustment mechanism, further expanding the camera's inspection range and allowing the robot to perform omnidirectional scanning of all areas inside the fuel tank, significantly improving the comprehensiveness and accuracy of the inspection. In this aircraft fuel tank inspection robot, the angle adjustment mechanism features a hole on the second fixed plate that matches the second rotating shaft, and a rotating connection between the second rotating shaft and this hole. This provides solid support for the stable rotation of the second rotating shaft, ensuring the smoothness and precision of the angle adjustment process. The meshing transmission of the worm gear and worm wheel not only has a self-locking function, effectively preventing accidental angle changes due to external forces during inspection, but also ensures the smoothness and reliability of the transmission, reducing vibration and noise. In the rotating mechanism, a hole on the top of the housing that matches the first rotating shaft, and a rotating connection between the first rotating shaft and this hole, allow the first rotating shaft to rotate stably within the housing. The meshing design of the gear and external gear ring is compact and has high transmission efficiency, accurately transmitting the power of the first servo motor to the first rotating shaft, achieving stable rotation of the fixed frame. In addition, the heat dissipation holes on the housing help the first servo motor dissipate heat in a timely manner during operation, ensuring the normal operation of the motor and extending the robot's service life. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a three-dimensional structural schematic diagram of the present utility model; Figure 2 This is a three-dimensional sectional view of the front of the structural box of this utility model; Figure 3 This is a three-dimensional schematic diagram of the gear and external gear ring of this utility model. Figure 4 This is a three-dimensional schematic diagram of the angle adjustment mechanism of this utility model; Figure 5 This is a three-dimensional diagram showing the disassembled angle adjustment mechanism of this utility model.

[0014] In the diagram: 1. Robot body; 2. Rotation mechanism; 21. Housing; 22. Heat dissipation hole; 23. First fixing plate; 24. First servo motor; 25. Gear; 26. First rotating shaft; 27. Rotating disk; 28. External gear ring; 3. Angle adjustment mechanism; 31. Fixing frame; 32. Second servo motor; 33. Worm gear; 34. Second fixing plate; 35. Second rotating shaft; 36. Worm wheel; 37. Third fixing plate; 38. Connecting plate; 39. Camera body; 311. LED light source. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0017] This utility model provides the following technical solution: Example 1

[0018] Please see Figure 1-5 This utility model provides a technical solution: an aircraft fuel tank inspection robot, including a robot body 1, a rotating mechanism 2 on the top of the robot body 1, and an angle adjustment mechanism 3 on the top of the rotating mechanism 2. The angle adjustment mechanism 3 includes a fixed frame 31, which is located on the top of the rotating mechanism 2. A second servo motor 32 is fixedly connected to the left side of the fixed frame 31. A worm gear 33 is fixedly connected to the output end of the second servo motor 32. Second fixed plates 34 are symmetrically fixedly connected to the bottom of the inner wall of the fixed frame 31. A second rotating shaft 35 is set on the top of the two second fixed plates 34 near the worm gear 33. A worm wheel 36 is fixedly connected to the middle of the rotating shaft surface. Third fixed plates 37 are fixedly connected to both ends of the second rotating shaft 35. A connecting plate 38 is fixedly connected to the top of the two third fixed plates 37. A camera body 39 is fixedly connected to the top of the connecting plate 38. An LED light source 311 is fixedly connected to the top right side of the connecting plate 38.

[0019] The second fixing plate 34 has a hole on one side near the top that matches the second rotating shaft 35, and the surface of the second rotating shaft 35 passes through and is rotatably connected to the hole.

[0020] The worm 33 meshes with the worm wheel 36, and the right end of the worm 33 is rotatably connected to the right side of the inner wall of the fixed frame 31. Example 2

[0021] Please see Figure 1-3 Furthermore, based on Embodiment 1, a rotating mechanism 2 is obtained.

[0022] The rotating mechanism 2 includes a housing 21, the top of which is fixedly connected to the robot body 1. Heat dissipation holes 22 are provided on the left and right sides of the housing 21. A first fixing plate 23 is fixedly connected to the back of the inner wall of the housing 21. A first servo motor 24 is fixedly connected to the top of the first fixing plate 23. A gear 25 is fixedly connected to the surface of the output shaft of the first servo motor 24. A first rotating shaft 26 is rotatably connected to the bottom of the inner wall of the housing 21. A rotating disk 27 is fixedly connected to the surface of the first rotating shaft 26 near the bottom. An external toothed ring 28 is fixedly connected to the edge of the rotating disk 27.

[0023] The top of the housing 21 has a hole that matches the first rotating shaft 26, and the surface of the first rotating shaft 26 passes through and is rotatably connected to the hole.

[0024] Gear 25 meshes with external gear ring 28.

[0025] The top of the first rotating shaft 26 is fixedly connected to the bottom of the fixing frame 31.

[0026] In actual operation, when this device is used and the horizontal rotation angle of the camera body 39 needs to be adjusted, the first servo motor 24 starts, and its output shaft drives the gear 25 to rotate. Since the gear 25 meshes with the outer toothed ring 28 on the edge of the rotating disk 27, the rotation of the gear 25 will drive the rotating disk 27 to rotate accordingly. The rotating disk 27 is fixed on the surface of the first rotating shaft 26 near the bottom end. Therefore, the rotation of the rotating disk 27 will drive the first rotating shaft 26 to rotate synchronously. Since the top of the first rotating shaft 26 is fixedly connected to the fixed frame 31 in the angle adjustment mechanism 3, the rotation of the first rotating shaft 26 will drive the entire angle adjustment mechanism 3 and the camera body 39, LED light source 311 and other components installed on it to rotate, thereby achieving all-round field of view coverage in the horizontal direction. At the same time, the heat dissipation holes 22 on the left and right sides of the housing 21 can dissipate the heat generated by the first servo motor 24 when it is working in time, ensuring the stable operation of the rotating mechanism 2. When the tilt angle of the camera body 39 needs to be adjusted, the second servo motor 32 starts working, and its output end drives the worm gear 33 to rotate. Since the worm gear 33 meshes with the worm wheel 36, the rotation of the worm gear 33 will drive the worm wheel 36 to rotate. The worm wheel 36 is fixed at the middle position on the surface of the second rotating shaft 35, and the two ends of the second rotating shaft 35 are rotatably connected in the holes of the second fixed plate 34. Therefore, the rotation of the worm wheel 36 will drive the second rotating shaft 35 to rotate synchronously. The third fixed plate 37, which is fixedly connected to both ends of the second rotating shaft 35, will rotate together with the second rotating shaft 35, thereby driving the top connecting plate 38 and the camera mounted on the connecting plate 38. The camera body 39 and the LED light source 311 rotate around the second rotating shaft 35 to adjust the pitch angle of the camera body 39. During the entire inspection process, the LED light source 311 provides sufficient illumination for the camera body 39, ensuring that the camera body 39 can clearly capture the condition of the inner wall of the fuel tank even in the dim environment inside the aircraft fuel tank. The horizontal rotation is achieved through the rotating mechanism 2 and the pitch angle is adjusted through the angle adjustment mechanism 3. The two work together to enable the camera body 39 to flexibly and comprehensively inspect the inside of the aircraft fuel tank, providing operators with detailed and accurate image information of the inside of the fuel tank.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An aircraft fuel tank inspection robot comprising a robot body (1), characterised in that: The top of the robot body (1) is provided with a rotating mechanism (2), and the top of the rotating mechanism (2) is provided with an angle adjustment mechanism (3). The angle adjustment mechanism (3) includes a fixed frame (31), which is located on the top of the rotating mechanism (2). A second servo motor (32) is fixedly connected to the left side of the fixed frame (31). A worm gear (33) is fixedly connected to the output end of the second servo motor (32). A second fixed plate (34) is symmetrically fixedly connected to the bottom of the inner wall of the fixed frame (31). A second rotating shaft (35) is provided on the top of the two second fixed plates (34) near the worm gear (33). A worm wheel (36) is fixedly connected to the middle of the surface of the rotating shaft. A third fixed plate (37) is fixedly connected to both ends of the second rotating shaft (35). A connecting plate (38) is fixedly connected to the top of the two third fixed plates (37). A camera body (39) is fixedly connected to the top of the connecting plate (38). An LED light source (311) is fixedly connected to the right side of the top of the connecting plate (38).

2. An aircraft fuel tank inspection robot according to claim 1, characterised in that: The second fixing plate (34) has a hole on one side near the top that matches the second rotating shaft (35), and the surface of the second rotating shaft (35) passes through and is rotatably connected to the hole.

3. An aircraft fuel tank inspection robot as claimed in claim 1, characterized in that: The worm (33) meshes with the worm wheel (36), and the right end of the worm (33) is rotatably connected to the right side of the inner wall of the fixed frame (31).

4. The aircraft fuel tank inspection robot according to claim 1, characterized in that: The rotating mechanism (2) includes a housing (21), the top of the robot body (1) is fixedly connected to the housing (21), heat dissipation holes (22) are provided on the left and right sides of the housing (21), a first fixing plate (23) is fixedly connected to the back of the inner wall of the housing (21), a first servo motor (24) is fixedly connected to the top of the first fixing plate (23), a gear (25) is fixedly connected to the surface of the output shaft of the first servo motor (24), a first rotating shaft (26) is rotatably connected to the bottom of the inner wall of the housing (21), a rotating disk (27) is fixedly connected to the surface of the first rotating shaft (26) near the bottom end, and an external gear ring (28) is fixedly connected to the edge of the rotating disk (27).

5. An aircraft fuel tank inspection robot according to claim 4, characterised in that: The top of the housing (21) has a hole that matches the first rotating shaft (26), and the surface of the first rotating shaft (26) passes through and is rotatably connected to the hole.

6. The aircraft fuel tank inspection robot according to claim 4, characterized in that: The gear (25) meshes with the external gear ring (28).

7. The aircraft fuel tank inspection robot according to claim 4, characterized in that: The top end of the first rotating shaft (26) is fixedly connected to the bottom of the fixing frame (31).

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